Viewing archive of Wednesday, 6 April 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Apr 06 1240 UTC

SIDC Forecast

Solar flares

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

	10cm flux	Ap
06 Apr 2016	084	010
07 Apr 2016	083	009
08 Apr 2016	084	008

Bulletin

Over the past 24 hours solar activity has slightly increased with respect to the previous 2 days. A slow Coronal Mass Ejection (CME) has been detected yesterday at 13:36 UT, which evolved from a small filament eruption on the disk adjacent to AR 2528. It has a small probability to hit the Earth around 09-Apr-2016. The largest flare was a C1.1 class flare, which peaked at 10:11 UT this morning. There are two ARs currently on the solar disk; AR 2528 (Macintosh class:Gro; Mag.type:Beta-Gamma) and AR 2527. AR 2526 is going to move over the solar limb in the next 24 hours, while one returning region will appear at the East limb within next 24 hrs. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with some probability of C-class flares. The solar wind speed has increased slightly over the past 24 hours, fluctuating between 350 to 450 km/s over the past 24 hours. The total magnetic field strength remained stable with the magnitude varying between 8 and 10 nT. The Bz component remained around 0 nT, varying between +7 and -6 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. There is currently a small transient coronal hole on disk, stretching from the South-East to center disk. Geomagnetic activity is expected to remain low over the next 2 days. However, in 3 days the level of geomagnetic activity has some chances to increase due to a small CME that occurred yesterday, the CME is related to a filament eruption that occurred around 13.00UT. We can also expect to encounter a high speed stream in approximately 3 days time.

Today's estimated international sunspot number (ISN): 020, based on 19 stations.

Solar indices for 05 Apr 2016

Wolf number Catania	040
10cm solar flux	083
AK Chambon La Forêt	011
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	032 - Based on 30 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

All times in UTC

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